"cool" - dry. basic. if you respond with this they'll think youre uninterested
"coolio" - extravagant. only fun people say this. if you respond like this you'll be at the top of their favorite people list
respond with coolio because its the cooler way to go
do not take this as complaining i truly see internet followings as mass surveillance but i find it hilarious that my follower count spikes every time i post a picture of myself then slowly whittles back down as i post more dumb shit. the jury finds you Hot But Not Funny